k-9/res/menu/message_list_context.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:id="@+id/delete"
        android:title="@string/delete_action"
        android:showAsAction="always"
        android:icon="@drawable/ic_action_delete"
    />
    <item
        android:id="@+id/read_toggle"
        android:title="@string/read_toggle_action"
        android:showAsAction="always"
        android:icon="@drawable/ic_action_toggle_read"
    />
    <item
        android:id="@+id/archive"
        android:title="@string/archive_action"
        android:showAsAction="always"
        android:icon="@drawable/ic_action_archive"
    />
    <item
        android:id="@+id/flag_toggle"
        android:title="@string/flag_toggle_action"
        android:showAsAction="ifRoom"
        android:icon="@drawable/ic_action_toggle_flag"
    />
    <item
        android:id="@+id/spam"
        android:title="@string/spam_action"
        android:showAsAction="ifRoom"
        android:icon="@drawable/ic_action_spam"
    />
    <item
		android:id="@+id/move_or_copy"
	    android:title="@string/move_or_copy_action"
	    android:showAsAction="ifRoom"
	    android:icon="@drawable/ic_action_move_or_copy">
	    <menu>
		    <item
		        android:id="@+id/move"
		        android:title="@string/move_action"
		    />
		    <item
		        android:id="@+id/copy"
		        android:title="@string/copy_action"
		    />
		</menu>
	</item>
</menu>